Electronics Projects

Phone In Use Indicators

Links to many references for phone off-hook indicators:

References

1. Phone in use indicator, YouTube
2. Insanely bright phone in use light, Instructables site
3. Plantronics Phone in use light, Instructables site
4. Kit 318, Phone in use kit, Electricsum site
5. Krown Amplified Ringer (and light) Krown Mfg
6. Phone Busy Indicator UK
7. Electronic Circuits (documentation)

Hearing Assist Technologies

See the section in the C3H Wikispace http://c3huu.org/Hearing+Assistance

References (not already on C3H page)

1. Assistive Technologies definition

In Wall Volume Control

Replacement candidates for C3H commons area.

References

1. NXG 100W slider, Home Depot
2. Theatre Solutions150W sliding audio switch Amazon